It was narrated from 'Abdullah that:
The Messenger of Allah (ﷺ) used to deliver two khutbahs standing, and he would separate them by sitting. (PT)
App reference (PT): Book 14, Hadith 53 (PT)
English reference (PT): Vol. 2, Book 14, Hadith 1417 (PT)
Arabic reference (PT): Book 14, Hadith 1427 (PT)